Hide Chromium Ads setting that conflicts with Brave ad blocking

[mbacchi]

Description

We should disable the confusing Ads setting in Chromium settings that conflicts with Brave ad blocking. I think this is a new setting for Chromium, now is a good time to hide it and avoid using it because it is not as effective as Brave ad blocking. If you open settings and search for ads, it is highlighted under the Privacy and Security -> Content Settings menu. This is the screenshot of where the setting is located:

And here is what the toggle looks like:

Steps to Reproduce

1. Open Settings
2. Search for 'ads'
3. Go to the Privacy and Security -> Content Settings -> Ads menu

Actual result:

Screenshots above

Expected result:

Reproduces how often:

Always

Brave version (chrome://version info)

Version 0.55.3 Chromium: 70.0.3538.12 (Official Build) dev (64-bit)

Reproducible on current release:

yes

Website problems only:

• Does the issue resolve itself when disabling Brave Shields? No
• Is the issue reproducible on the latest version of Chrome? Yes

Additional Information

[btlechowski]

Verification passes on

Brave	0.55.10 Chromium: 70.0.3538.22 (Official Build) beta (64-bit)
Revision	ac9418ba9c3bd7f6baaffa0b055dfe147e0f8364-refs/branch-heads/3538@{#468}
OS	Windows 7

Privacy and Security -> Content Settings -> Ads menu is gone
Searching for ads does not find Ads menu (it finds Downloads)
chrome://settings/content/ads redirects to chrome://settings

Verified passed with

Brave	0.55.10 Chromium: 70.0.3538.22 (Official Build) beta(64-bit)
Revision	ac9418ba9c3bd7f6baaffa0b055dfe147e0f8364-refs/branch-heads/3538@{#468}
OS	Mac OS X

Privacy and Security -> Content Settings -> Ads menu is gone
Searching for ads does not find Ads menu (it finds Downloads and Brave shields defaults)
chrome://settings/content/ads redirects to chrome://settings

Verification Passed on

Brave	0.55.11 Chromium: 70.0.3538.35 (Official Build) beta (64-bit)
Revision	28dcb499844fa40c28d5f62e337876cb936f79f5-refs/branch-heads/3538@{#678}
OS	Linux